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(No Model.)

P. D. ANDERSON.

PLOW POINT. 334,837. Patented Jan. 26, 1886.

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UNrTEn STATES PATENT OFFICE PALMER D. ANDERSON, OF \VATERPORT, NEW YORK.

PLOW-POtNT.

SPECIFICATION forming part of Letters Patent No. 334,837, dated January 26, 1886.

Application filed September 28, 1885. Serial No. 178,372. (No model.)

To all whom it may concern.-

Be it known that I, PALMER D. ANDERSON, of VVaterport, in the county of Orleans and State of New York, have invented a new and useful Improvement in Plow-Points, which improvement is fully set forth in the following specification and shown in the accompanying drawings.

The object of my invention is to produce an improved plow-point, the improvement relating to the part of the point that joins the standard of the plow, said improvement be ing in the peculiar and novel formation of the seat for said standard, by means of which said point and standard may be more rigidly and securely joined by means of asingle bolt, the increased strength of the parts joined being also a result of the invention.

Referring to the drawings, Figure 1 is a view of the under surface of my improved plow point, showing the same inverted, a part of the same being broken away to show the under-cut of the standard-seat; Fig. 2, a longitudinal section of the point, taken as on the dotted line a; in Fig. 3, and viewed as indicated by the arrow in said latter figure and by the arrow y in Fig. l, drawn to further show the undercut part of the seat for the standard at the point thereof; Fig. 3, a view of the point taken as indicated by arrow 2 in Fig. 1; and Fig. 4, a view of the standard or part holding the point, with a portion of the inold-board, drawn to show the corrugated seat of said standard for said point, the point being shown in dotted linesin place upon the standard.

Referring to the parts, A is the plow-point; D, the seat thereof for the standard; B, the landside of the point, and O the cutting-edge for the latter. The floor of the seat D for the standard is corrugated or formed in a series of alternating parallel ridges, a, and grooves 0 formed longitudinally or in lines parallel with the line of advance of the plow. The edge I) of the seat D is dovetailed or out under, as shown. Also,at the point d the seat is more sharply undercut, and the foot F of the standard G is correspondingly corrugated, having its edge 9 and point h inclined or slanted back to fit the undercut surfaces at the edge and point I) and d of the standard-seat, above mentioned.

if is a lip projecting from the under surface of the point, to guide and assist to hold the point onto the standard. The corrugations are made longitudinal, as stated, which gives to the point and to the standard unusual strength, for the tendency in use is for the plow-point to break where it joins the standard along some line crossing or forming an angle with the line of advance of the plow, instead of along a line parallel with the line of said advance.

A metal plate, if corrugated, is far more liable to break along the corrugations than across them, from which fact arises the superior strength of my plow-point when corrugated in the direction stated.

The contiguous surfaces of the standard and point being correspondingly corrugated, and the undercut or dovetailedparts of the seat of the latter being fitted by the standard, the

said standard and point have a sure and firm hold upon each other, so that they are easily and firmly held together by a light bolt passed across the joint between them through the hole 6.

Plows made with the bearing-faces between the point and standard ridged are not new, and such, generally, I do not claim.

What I claim as my invention is In combination with the standard ofa plow, a point therefor secured to said standard, having the bearing-face contiguous to said standard formed with ridges that are of uniform width and depth throughout their length and parallel with each other, said ridges being formed parallel with the line of advance of the plow, the standard-seat on said point being out under along three sides thereof, said point being further provided with a projecting tongue, f, to lap under the edge of said standard, the latter having its face contiguous to said point correspondingly furrowed with parallel uniform grooves to meet said ridges of the point, and having its three bearingedges against said point made acute to enter said undercut cavities of the point, substantially as shown,and for the purpose set forth.

PALMER D. ANDERSON.

Vitnesses:

E. B. XVHITMORE, M. E. FURLONG. 

